[OpenSocial] viewing another user's canvas

Hi, I read over "Anatomy of a Gadget" and it seemed to imply that a user's canvas can only be viewed by the owner. But I've noticed I can see another user's canvas for a given app just by changing the uid in the url. (This assumes the other user has the app installed, too.) Is this supposed to hap

[OpenSocial] FeedBack, some questions about my tag application

After so much sufferings, debuggings, orkut "no donut" pages i have finally created a opensocial application by which you can give tags to your friends like tagged.com, MyBlogLog, you can view it action at my orkut page- http://sandbox.orkut.com/Profile.aspx?uid=12042369521039845627 you can add th